IFE is about to develop a next generation multiphase modelling tool for subsea wells and pipes. The joint industry project HORIZON will continue the highly successful OLGA development for IFE, SPT GROUP (SPT) and the participating oil companies.

Nossen, Jan

Deputy Head of Department


The objective of the large research project HORIZON is to bring the already world leading multiphase simulator OLGA some big technical steps forward to meet future challenges. The development and operation of oil and gas fields requires a more detailed understanding, as mixtures of oil, gas and water are to be transported in pipes longer, deeper and in colder waters.

The research programme HORIZON currently has a budget of NOK 63 million and is supported by 6 oil companies together with SPT. IFE and SPT perform the work in the research programme, for a period of three and a half year.

More mechanistic models than before will be developed to describe how the fluid velocity varies over the pipe cross section under various flow conditions. These two dimensional velocity profiles can be pre-processed and put into equations that describe the pipe one dimensionally. This is necessary to obtain sufficiently fast simulations of these complex flow conditions for engineering use.

It is increasingly important to find effective solutions to the added complexities caused by the presence of sand, wax and hydrates. Advanced models for these phenomena are included in the HORIZON research areas. Much effort is put into making the simulator more flexible, for example by allowing users to plug in their own models for such phenomena.

OLGA will be coupled to a near well model previously developed by IFE. This coupled tool is expected to enable studies of unstable well production caused by flow phenomena inside and around the well.

Results from the research programme will be implemented in the next generation of the simulator tool OLGA.

Horizon-loopenThe picture shows Olav Sendstad (to the left) and Morten Langsholt in the Well Flow Loop.